ROLE OF THE MOBILE-PHASE IN CAPILLARY GAS-LIQUID-CHROMATOGRAPHY - INFLUENCE OF THE NATURE AND PRESSURE OF THE CARRIER GAS ON THE RETENTION OF HYDROCARBONS AND THEIR DERIVATIVES

Capillary gas chromatography is the main method for analysing volatile compounds in science, industry and environmental control in many sphe res of human activity [1, 2]. Capillary gas chromatography is used par ticularly actively in petroleum chemistry, scientific research and in industry. The development of physicochemical principles of chromatogra phy and a better understanding of the process are therefore of theoret ical and practical importance. The main participants in GLC are firstl y the stationary liquid phase (SLP) together with the solid support, s econdly the substances to be separated (or the sorbates), and thirdly the mobile phase or carrier gas. (C) 1998 Elsevier Science Ltd. All ri ghts reserved.